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Effects of sheet electron beam irradiation on aircraft design stress of carbon fiber

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Abstract

Using sheet electron beam (EB) irradiation, reinforcement for carbon fiber was achieved. In order to annihilate twisting strain in carbon fiber, the fracture stress was precisely obtained by means of a twisting free tensile test developed. The EB treatment enhanced the fracture stress at different integrated fracture rates (R f) and increased Weibull modulus. It also enhanced design stress, when the integrated fracture probability (P f) is 10−5 for aircraft materials. The aircraft design stress (5 GPa) was approximately 4 GPa larger than that (1 GPa) before EB treatment.

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Authors and Affiliations

  1. Department of Materials Science, Tokai University, 1117, Kitakaname, Hiratsuka, Kanagawa, 259-1292, Japan

    Nishi Yoshitake, Akihiro Mizutani, Atsushi Kimura, Takashi Toriyama, Kazuya Oguri & Akira Tonegawa

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  1. Nishi Yoshitake
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  2. Akihiro Mizutani
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  3. Atsushi Kimura
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  4. Takashi Toriyama
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  5. Kazuya Oguri
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  6. Akira Tonegawa
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Yoshitake, N., Mizutani, A., Kimura, A. et al. Effects of sheet electron beam irradiation on aircraft design stress of carbon fiber. Journal of Materials Science 38, 89–92 (2003). https://doi.org/10.1023/A:1021113932581

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  • DOI: https://doi.org/10.1023/A:1021113932581

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